Introducing use-ember-modules optional feature #21009
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This is work-in-progress for RFC 1101, which would deprecate consuming ember via the AMD bundles. This PR is creating an optional feature that makes classic builds consume ember the same way Embroider does (using `dist/packages` instead of `dist/ember.debug.js`, etc). TODOs: - we should add v2 addon meta 'implicit-modules' support to ember-auto-import - and use implicit-modules in the new branch within autoImportMeta to eagerly register all the modules that were in the amd-compat-entrypoint.
Estimated Asset SizesDiff --- main/out.txt 2025-11-21 02:57:30.000000000 +0000
+++ pr/./pr-19681310450/out.txt 2025-11-25 19:17:10.000000000 +0000
@@ -1,36 +1,36 @@
╔═══════╤═══════════╤═══════════╗
║ │ Min │ Gzip ║
╟───────┼───────────┼───────────╢
-║ Total │ 417.63 KB │ 231.62 KB ║
+║ Total │ 416.72 KB │ 230.96 KB ║
╚═══════╧═══════════╧═══════════╝
╔══════════════════════╤═══════════╤═══════════╗
║ @ember/* │ Min │ Gzip ║
╟──────────────────────┼───────────┼───────────╢
-║ Total │ 238.38 KB │ 146.63 KB ║
+║ Total │ 237.99 KB │ 146.49 KB ║
╟──────────────────────┼───────────┼───────────╢
-║ -internals │ 34.55 KB │ 24.84 KB ║
-║ application │ 12.71 KB │ 7.73 KB ║
-║ array │ 12.66 KB │ 7.32 KB ║
+║ -internals │ 34.52 KB │ 24.88 KB ║
+║ application │ 12.7 KB │ 7.6 KB ║
+║ array │ 12.63 KB │ 7.3 KB ║
║ canary-features │ 304 B │ 419 B ║
║ component │ 1.07 KB │ 1005 B ║
║ controller │ 1.8 KB │ 1.36 KB ║
-║ debug │ 11.4 KB │ 7.92 KB ║
+║ debug │ 11.36 KB │ 7.92 KB ║
║ deprecated-features │ 31 B │ 77 B ║
║ destroyable │ 561 B │ 383 B ║
║ enumerable │ 259 B │ 387 B ║
║ helper │ 823 B │ 599 B ║
-║ instrumentation │ 2.43 KB │ 1.78 KB ║
+║ instrumentation │ 2.43 KB │ 1.77 KB ║
║ modifier │ 669 B │ 586 B ║
-║ object │ 33.78 KB │ 20.79 KB ║
+║ object │ 33.74 KB │ 20.66 KB ║
║ owner │ 159 B │ 178 B ║
║ renderer │ 406 B │ 353 B ║
-║ routing │ 58.08 KB │ 33.43 KB ║
+║ routing │ 58.04 KB │ 33.41 KB ║
║ runloop │ 2.2 KB │ 1.33 KB ║
║ service │ 859 B │ 741 B ║
║ template │ 430 B │ 370 B ║
║ template-compilation │ 429 B │ 366 B ║
-║ template-compiler │ 57.91 KB │ 30.4 KB ║
+║ template-compiler │ 57.71 KB │ 30.53 KB ║
║ template-factory │ 94 B │ 160 B ║
║ test │ 923 B │ 627 B ║
║ utils │ 3.93 KB │ 3.5 KB ║
@@ -40,22 +40,22 @@
╔═════════════════╤═══════════╤══════════╗
║ @glimmer/* │ Min │ Gzip ║
╟─────────────────┼───────────┼──────────╢
-║ Total │ 179.25 KB │ 84.99 KB ║
+║ Total │ 178.73 KB │ 84.47 KB ║
╟─────────────────┼───────────┼──────────╢
-║ destroyable │ 2.7 KB │ 1.35 KB ║
+║ destroyable │ 2.69 KB │ 1.3 KB ║
║ encoder │ 596 B │ 653 B ║
║ env │ 38 B │ 87 B ║
║ global-context │ 886 B │ 545 B ║
-║ manager │ 12.19 KB │ 5.44 KB ║
+║ manager │ 12.17 KB │ 5.42 KB ║
║ node │ 2.71 KB │ 1.81 KB ║
-║ opcode-compiler │ 29.89 KB │ 13.23 KB ║
+║ opcode-compiler │ 29.72 KB │ 13.19 KB ║
║ owner │ 159 B │ 202 B ║
-║ program │ 7.1 KB │ 3.63 KB ║
-║ reference │ 5.51 KB │ 3.18 KB ║
-║ runtime │ 95.26 KB │ 42.69 KB ║
+║ program │ 7.1 KB │ 3.62 KB ║
+║ reference │ 5.49 KB │ 3.21 KB ║
+║ runtime │ 94.98 KB │ 42.28 KB ║
║ tracking │ 989 B │ 961 B ║
║ util │ 3.03 KB │ 2.29 KB ║
-║ validator │ 15.64 KB │ 6.86 KB ║
+║ validator │ 15.63 KB │ 6.83 KB ║
║ vm │ 784 B │ 798 B ║
║ wire-format │ 1.84 KB │ 1.35 KB ║
╚═════════════════╧═══════════╧══════════╝Details
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#21009 added the optional feature to use ES modules instead of AMD bundles, this follows up by emitting a deprecation if you don't do that.
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This is for RFC 1101, which would deprecate consuming ember via the AMD bundles.
This PR is creating an optional feature that makes classic builds consume ember the same way Embroider does (using
dist/packagesinstead ofdist/ember.debug.js, etc).TODOs:
@ember/optional-featuresthat defines the new flagThis drops support for Node < 20.19, following Ember's node support policy.